<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>关于</title>
    <style>
        body{
            margin: 0;
        }
        #all {
            margin: 0 auto;
            width: 1024px;
            height: 646px;
            background-image: url("images/about.jpg");
        }
    </style>
</head>
<body>
<div id="all">

</div>
</body>
</html>